High-temperature gas measurement and calculation fusion method based on particle energy level population

Abstract

The invention discloses a high-temperature gas measurement and calculation fusion method based on particle energy level population, which adopts the energy level population of particles such as atoms, molecules, ions and the like to characterize the state of high-temperature gas, and takes the energy level population as a measurement target of a high-temperature gas test research means and a calculation target of a numerical simulation means. Therefore, effective fusion of the two means is promoted, and a hypersonic high-temperature gas non-equilibrium flow research method is expanded. According to the high-temperature gas measurement and calculation fusion method based on the particle energy level population, the particle energy level population is adopted to represent the state of the high-temperature gas, the method does not depend on the equilibrium hypothesis that the particle energy level obeys the Boltzmann distribution function and is more fundamental than the temperature state parameter, quantum state resolution of the state of the high-temperature gas can be achieved, and the method is suitable for large-scale popularization and application. The device is more suitable for non-equilibrium high-temperature gas flow research.

Description

technical field [0001] The invention relates to the research field of high temperature gas microscopic properties. More specifically, the present invention relates to a fusion method of high temperature gas measurement and calculation based on particle energy level population. Background technique [0002] Hypersonic vehicles, especially interstellar vehicles, are faced with a very high temperature gas thermal environment when entering the atmosphere. The internal energy modes such as molecular vibration energy and electron energy in the gas are excited, and chemical reactions such as dissociation, ionization, and recombination are strong. Radiation transition, particle collision process There are many complex thermochemical equilibrium processes, which seriously affect the accurate prediction of aircraft force / thermal environment and aircraft safety. Accurate diagnosis and research on the thermochemical properties of high-temperature gas is the focus of frontier research o...

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Problems solved by technology

The fusion method of experimental research and numerical calculation, which takes these macroscopic parameters as the comparison target, is a test of the macroscopic effect of high temperature flow, and lacks a direct test of its microscopic thermodynamic process and chemical reaction process.

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